Real-time method and apparatus for measuring the temperature of a fluorescing phosphor
A method for determining the temperature of a fluorescing phosphor is provided, together with an apparatus for performing the method. The apparatus includes a photodetector for detecting light emitted by a phosphor irradiated with an excitation pulse and for converting the detected light into an electrical signal. The apparatus further includes a differentiator for differentiating the electrical signal and a zero-crossing discrimination circuit that outputs a pulse signal having a pulse width corresponding to the time period between the start of the excitation pulse and the time when the differentiated electrical signal reaches zero. The width of the output pulse signal is proportional to the decay-time constant of the phosphor.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC07-93ID13205
- OSTI ID:
- 20013982
- Resource Relation:
- Other Information: PBD: 16 Nov 1999
- Country of Publication:
- United States
- Language:
- English
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Real-time method and apparatus for measuring the temperature of a fluorescing phosphor